Just found time to search for a couple of Atari Jaguar Freeware images, and here we go:
Atari Jaguar
Asteroid by Sinister Developments
Colors and Mouse (colorsmo.jag) by Matthias Domin
Colors by Matthias Domin
JAG Mania (6 Jan 2001) by Matthias Domin
JAG Marble v0.03 by Matthias Domin
JDC Demo by Lars Hannig
JDC Demo V3 by Lars Hannig
Joypad-Tester (jptest2) by Matthias Domin
Memory Dump v1.0 by Matthias Domin
Memory Dump v1.1 by Matthias Domin
Painter by Sinister Developments